to spread out or open up, particularly in the context of strategic maneuvering

他在外交谈判中巧妙地运用了捭阖之术。

to separate or open; often used in the context of strategic maneuvering or opening and closing

他精通纵横家的捭阖之术。

to split, divide, or break something apart by hand

他用力将厚木板捭成两段。